h3{
    margin-top: 2em;
    margin-bottom: 3px;
}

#demo1-box {
    width:300px;
    display: none;
    padding:5px;
    border:2px solid #FFF;
    border-top: 2px solid #DDD;
    background-color: #DDD;
}
#demo1-but{
    display:block;
    color: #FFF;
    text-decoration:none;
    width:300px;
    padding:5px;
    border:2px solid #CCC;
    background-color: #555;
}

#demo2-box{
    width: 100px;
    color: white;
    border: 2px solid #CCC;
    background-color: #555;
    padding: 5px;
}

#demo3-box{
    height: 100px;
    width: 100px;
    display: block;
    position: relative;
    background: #555;
}
